Receiving hopper structure for hot metal mixers



Jan. 25, 1944. H. MQFEATERS RECEIVING HOPPER STRUCTURE FOR HOT METALMIXERS Filed March 15, 1943 2 Sheets-Sheet l Jan. 25, 1944. H. L. MFEATERS 2,340,193

RECEIVING HOPPER STRUCTURE FOR HOT METAL MIXERS Filed March 15, 1943 2Sheets-Sheet 2 Patented Jan. 25, 1944 RECEIVING HOPPER STRUCTURE FOR HOTMETAL MIXERS Harry L. McFeaters, New Castle, Pa., assignor toPennsylvania Engineering Works, a corporation of PennsylvaniaApplication March 15, 1943, Serial No. 479,209

Claims.

This invention relates to hot metal mixers and more particularly tohopper structures for the charging openings of such mixers.

In hot metal mixers of the type in which the top portion of the mixershell is provided with at least one charging opening, and the refractorylining of the shell is provided with an opening below such chargingopening, the shell opening is usually surrounded by an upstanding memberw a in atent ,241 of July 2 1930, In Fig. 1 of the drawings, I havedisclosed one forms a support for a removable hopper iormtype of hotmetal mixer to which the invention ing member or thimble which isprovided with OI this application is applicable. This mixercomrefractory lining. prises an outer shell 5, having a charging hopperThis construction permits replacement of the 6, a pouring spout l, aconnecting portion 8 leadpper y another relined opper as its refracingII'Om the mixer proper to pourin spout l, a y lining e s at n w y or eoded b rerractory lining s for the major portion of thezgleolllllgklltifier llgtgllag 1 1 charged into the mixer mjinxelrl,preferably lormed of hrefractoryt bricks w c closely hi; the mixer sell, and he op II1 the Se N mixers, the Wall Of the 11019 refractorylining l0 which is preferably spaced PPEnmg refractoly lmmg bilow Chargfrom the top of the mixer shell, a refractory linlng 91 3 8 a 50 ea e11y 3' erosion an ing II for channel portion 8, and a refractory i gg gggi g sfi g fm- 1 s di lining for spout I, which lining is not shown.

5 W 15 a more or e S The u er linin It, which onstitutes th roo ficultjob and one object this invention is portion the mi er lining, isprei'erably iafrmeri to produce; a holpper stru t r n Whlch P Wall a asprung arch supported on skewblocks 4| 2 and gig gfg fi i fiig fi igg fand 15 there is. The supporting structure for the mixer shell V and theapparatus for tilting the shell to and purpose of simplification. togive it a longer useful life. e

A further object is to produce a hopper 'struc- The mlxer mustraped 1Sof the barrel type ture in which such wall forms art f the ho per one orboth ends OI the same may be provmed p o p with inspection openings l4and a, burner openstructure, so that as the refractory parts of such ing5 in the refractory lining and with suitable structure become eroded,the hopper can be replaced with another hopper in which the refrac- Eggfor the Inspection openings m the shell tory parts have been renewed orrepaired.

A further object is to produce a removable 'llhe mixei shell WhlClllspreferably formed of hopper for the charging opening having a refracsuitable metal plate sections connected together tory skirt which iswater cooled and which exby Weldmg' 1s Brovlded Wlth clrcula'r Chargtends through the opening in the mixer lining 40 mg openmg P 2) 1 t Pbelow the hopper below the charging opening is provided with a A stillfurther object is to produce a removable cu'culal oPemng bounded y archf bricks hopper for the charging opening having a water Opemng 15 S11}?minded y an upstanding cooled refractory skirt which extends through themember- Thls member 18 of welded opening i t mixer lining below thopper, struction and comprises a cylindrical member l8 and which isremovable with the hopper. 'Y upper flange and a lower ge These andother objects, which will be appar which iswelded to the shellaround'the charging ent to those skilled in the hot metal mixer art,Openmg- I attain by the hopper structure described in the A st met l ppcomprising a ind ical specification and illustrated in the drawings 2.0-may Portlon an pper outwardly extending companyi'ng and forming part ofthis applicaflallge 22 and a l r i w y extending flan tion. 23 1Sremovably supported in place on the upper I th drawings: flange of thesupport member.

Figure 1 is a view partially in section and par- The hopp r is providedwith a refractory lintially in elevation of a hot metal mixer equippedmg 24. A hollow annular metal member 25 is with a charging openinghopper embodying this invention. In this view, the supporting andtilting apparatus for the mixer has been omitted.

Fig. 2 is an enlarged detail view of the charging opening hopperstructure of this invention; and

Fig. 3 is a fragmentary sectional view on an enlarged scale of a portionof the cooling element for the refractory skirt of the hopper structure.

secured in place below and in contact with inwardly extending flange 23.

Member is preferably formed of steel tubing which is flattened as shownin the drawings and is bent into the form of a ring with its ends weldedto a plate-like member 25 which forms a baffle in the annular chamberbetween inlet pipe 2? and outlet pipe 28. These pipes enter the topportion of member 25 and are welded in place as disclosed at 29, Fig. 3.From this construction, it will be apparent that cooling water or othercooling fluid entering inlet pipe 21 will circulate through member 25and pass out through outlet pipe 28.

Pipes 2'1 and 28 pass upwardly through openings such as opening 30formed in flange 23 of the hopper. The upper ends of each of thesepipes, by means of elbows 3! connect with pipes such as 32 which arepart of a cooling water or other cooling medium circulating system.

Member 25, at its top, bears against the under face of the lower flangeof the hopper and is securely held in place by angle clips or brackets33 which are welded to the under face of said flange and to member 25.ber 34, preferably of round section, is welded to the inner peripheralface of member 25 and forms an anchor for an annular refractory skirtmember 35. This skirt is preferably formed of refractory material, whilethe same is in plastic condition and before the hopper and water cooler25 are placed in position within the charging opening. Anchor member 35securely holds the refractory skirt member in place.v

The refractory bricks which surround the opening in the mixer liningbelow the hopper are cut away to accommodate annular water cooler 25 asdisclosed in Fig. 2 and the refractory skirt is preferably of suchlength as .to ex-. tend from the lower face of flange 23 to the lowerface of arch or roof H1. The space between the skirt and the lower edge,of the refractory lining of the hopper is filled with plastic refractorymaterial 36.

Before lifting the hopper from position, it will be necessary to unscrewpipes 32 from elbows 31.

A cast cover 31 lined with refractory material 38 is provided for thehopper and this as shown in the drawings, is supported in position byrefractory lining 24 ofthe hopper. A system of links and levers as,shown in Fig. 2 of usual construction is utilized for moving, the coverto and from closing position.

Having thus described myinvention, what I claim as new and desire tosecure by Letters Patent is:

1. In combination in a hot metal rnixerv having a shell provided with acharging opening surrounded by an upstanding support member and arefractory lining for the shell having an opening below said chargingopening, a removable metal hopper supported by said support member andhaving a refractory lining, an annular refractory member below saidhopper membenforminga refractory skirt for the hopper member whichextends into the opening in the shell lining, and means connecting suchA bar-like memskirt to the hopper; the construction and arrangementbeing such that said skirt forms part of the hopper and is removablewith the same.

2. In combination with the shell of a hot metal mixer having a chargingopening surrounded by a support member and a refractory lining for saidshell having an opening below said charging opening, a removable metalhopper member supported by said support member and extending through thecharging opening, a refractory lining for said hopper member, an annularrefractory member below said hopper member and extending into theopening within the shell lining, and a hollow metal member secured toand depending from said hopper member and having a cooling medium inletand a cooling medium outlet and being constructed and arranged tosupport said annular refractory member.

3. In combination with the shell of a hot metal mixer having a chargingopening surrounded by an upstanding member supported by said shell and arefractory lining for said shell having an opening below said chargingopening, a removable metal hopper member supported by said upstandingmember, extending through-the opening in the shell and, adjacent itsbottom having an inwardly extending flange, a refractory lining forsuch'hopper member supported by said flange, a refractory skirt locatedbelow said flange and extending intothe opening in the shell lining, anda cooling element located below and secured to said hopper member,having a fluid inlet and a fluid outlet, contacting with and surroundingsaid refractory skirt and carrying means for anchoring said skirt inplace.

4. In combination with the metal shell of a hot metal mixer having acharging opening surrounded by a support member and a refractory lininghaving an opening below said charging opening, a removable metal hoppersupported by said support member, extending through the charging'openingin said shell and adjacent its bottom having an inwardly extendingflange, a

refractory lining for the hopper carried'b-y said inwardly extendingflange, a skirt-like'refractory member below said flange, a flattenedtubular metal ring secured to said fiange,depending from the same,having an inlet and an outlet for a cooling medium and provided on itsinner peripheral face with means for anchoring said skirt-likerefractory member in place.

5. In combination with the metal shell of a hot metal mixer having acharging opening surrounded by an upstanding support member, and arefractory lining for said shell having an openingbelow said chargingopening, a removable hopper having a refractory lining, an annularrefractory skirt below said hopper, and extending into the opening inthe shell lining, and a hollow annular metal water cooled member securedto and depending from said hopper, surrounding said skirt, anchoringsaid member in place and having an inlet and an outlet for coolingwater.

HARRY L. MoFE-ATERS.

CERTIFICATE OF CORRECTION. Patent No. 2,514.0,195. January 25, 19M

HARRY L. MCFEATERS.

vIt is hereby certified that error appears, in the printed specificationof the above numbered patent requiring correction asfollows; Page 2,second column, line 65, claim 5, for "member" read -skirt-; and that thesaid Letters Patent should be read with this correction therein that thesame may conform to the record of the case in the Patent Office.

Signed and sealed this ll th day of March, A. D. 19141;.

Leslie Frazer .(Seal) Acting Commissioner of Patents.

